Hyaloscypha leuconica A Tiny Ascomycete Fungus
I am fairly sure of the genus, less so of the species, but I may get confirmation from an expert soon. This was on a piece of rotten wood in a dense colony, which i initially though was an alga. These nest-like fruiting bodies are something like 0.5mm across (the largest ones)
I had not seen this genus before.
I took only location shots, handing on the material for a second opinion.
The stereo is crosseye.
Olympus EM-1 (manual mode), Laowa 25mm f2.8 2.5x-5x ultra-macro at x2.5 and 118, triple TTL flash hand-held.